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Clinical pharmacy PharmD program                     Third level                          Phytochemistry-1 (PG-504)


                 •  It occurs naturally as a component of gums, mucilages, hemicelluloses.


               Preparation: By enzymatic oxidation of glucose (see above)



















              Importance: to detoxify substances as camphor, menthol, phenol, salicylates and

              chloral hydrates by conjugation.


              Uses:  Relief  certain  arthritic  conditions,  as  it  is  an  important  component  of

              cartilage, nerve sheath, joint capsule tendon, joint fluid and intercellular cement

              substances.





                                                      3) Esters


               Phosphoric acid ester of monosaccharide. e.g: glucose 6 –phosphate (G-6-P)


              The – OH groups of monosaccharides form esters with phosphoric acid;


              Phosphate esters:



              Phosphate  esters  can  be  formed  at  the  6-carbon  of

              aldohexoses (Glucose – 6 – phosphate);


               Importance: found in the sugar-phosphate backbone of DNA and RNA, and as

               intermediates in the metabolism of carbohydrates in the body.


                                                4) Desoxy – sugars







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